Furnace and attachment therefor



(No Model.)

W. S. HUTGHINSON.

FURNACE AND ATTACHMENT THEREFOR.

No. 480,328. Patented Aug. 9, 1892.

Wz f/zamm \u'w'w xmaw'wm 4/ iffy/W5 UNITED STATES PATENT OEEIcE.

WILLIAM S. HUTOHINSON, OF CHICAGO, ILLINOIS.

FURNACE AND ATTACHMENT THEREFOR.

SPECIFICATION forming part of Letters Patent No. 480,328, dated August9, 1892.

Application filed September 9, 1891. Serial No. 405,178. (No model.)

To all whom it may concern.-

Be it known that 1, WILLIAM S. HUTCHIN- SON, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Furnaces andAttachments therefor, of which the following is a specitica tion.

My invention relates to improvements in devices for the production andcombustion of watengas in locomotive and marine boilers, and has for itsobject to provide simple and convenient means whereby the same may beapplied to a locomotive or marine engine firebox.

My invention is illustrated in the accompanying drawings, wherein Figure1 is a side view of a locomotive-boiler and fire-box with my improvementattached. Fig. 2 is an end view thereof. Fig. 3 is an enlarged detailView showing the parts and their relation to each other.

A is the furnace, and E is a steam-pipe, which passes forward from thepipe D and is adapted at its forward end to discharge into the base ofthe smoke-stack, so as to furnish an artificial draft, if desired.

H is a pipe which passes through the plate .T' or sleeve J. The sleeveis set in the side of the furnace-wall,passes through the waterspace, isput in with an expander, and beaded down at both ends. This pipe H isheld in position by the nut K, so that the steam and air may bedischarged from the injector G into the furnace-chamber. There is aflange K on the pipe, to which the nut is opposed.

The form of the injector is shown in Fig. 3, where F represents a pipeprovided with a series of short lateral pipes G terminating each in thetip G within the surrounding globe G Projecting from this globe is thepipe G, and transversely disposed within the same is a centrallyperforated diaphragm G The These in j ectors may be placed outside thefurnace, and the connecting-pipes may then be passed through thewater-jacket, as shown in Fig. 3; but I prefer to place or attach insidethe furnace or ash-pit space the plate J, cast or otherwise formed. Thesame may be part of the wall in a permanent setting, as of course thisgeneral construction could be employed, also, in stationary engines. Inthis case the pipe D comes down about the edge of the furnace and passesup to contact with the pipe F, which, with the injectors, lies betweenthe furnace-wall and the plate.

The use and operation of my invention are as follows: The steamdischarging through the pipe D passes into the pipe E, where it isdistributed along and discharged through the several pipes Gr G whichform each a part of an injector. These several pipes terminate ingradually-contracted apertures, as shown, which open near the opening inthe diaphragm G and thence discharge into the pipe G. By this means agreat quantity of air will be drawn in with the steam and forced throughthe pipe into the fire-box. At the same time in like manner by similarmeans air and steam will be injected into the other side of thefire-box. The steam may also be forced through the pipe E, as indicated,into the smoke-stack to facilitate a draft.

I claim In a furnace for locomotive and marine boilers or the like, thecombination of interior vertical plates with injectors located in thespace between such plate and the furnacewall, a pipe leading from suchinjectors, passing through the plates, and opening into the furnace, anda steampipe passing down the outside of the boiler and furnace and upbetween such plate and the inner wall of the furnace to the injector,substantially as shown and described.

WVILLIAM S. HUTOHINSON.

Witnesses:

CELESTE P. CHAPMAN, ANNA OoBURN.

